SB Acoustics SB15CAC30-4 standard measurements on LoudspeakerLab. 88.0 dB sensitivity. Fs 32 Hz. Qts 0.310. Evidence grade C+ (57.0/100).
Fs: 32 Hz; Qts: 0.310; Qes: 0.340; Qms: 4.610; Vas: 20.20 L; Sd: 82.0 cm²; Re: 3.10 Ω; Le: 0.12 mH; Sensitivity: 88.0 dB; Nominal Z: 4.0 Ω; Measured range: 21-18249 Hz
On-axis flatness 61 · DI tracking 67 · DI smoothness 43
Scored passband 58 Hz–3.3 kHz
Spec-sheet profiles · Off-axis H/V response data available.
Vented ~9.9 L · Fb 46 Hz
LoudspeakerLab evidence grade: C+ (57.0/100). Based on measurement provenance, off-axis data, distortion, and T/S completeness.